#276757Terrestrial (#276757) is a dark, soft blue-green with an OKLCH hue of 174°, lightness 0.47 and chroma 0.071. It sits on the cool side of the color wheel. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #276757 |
|---|---|
| RGB | rgb(39, 103, 87) |
| HSL | hsl(165, 45%, 28%) |
| HSV | hsv(165, 62%, 40%) |
| CMYK | cmyk(62%, 0%, 16%, 60%) |
| CIE Lab | lab(39.3 -24.7 3) |
| OKLCH | oklch(0.468 0.071 174) |
Under warm 2700K interior light Terrestrial shifts subtly: leans toward green; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.2), so it is a lighting-stable choice.
#326451 — ΔE 1.2, shifts subtly: leans toward green#2e6855 — ΔE 0.8, shifts subtly: leans toward green#276757 — ΔE 0.0, is virtually unchanged#266858 — ΔE 0.3, is virtually unchangedTest Terrestrial in the color lighting simulator — sweep it through daylight, warm 2700K light, 4000K LED, and shade alongside the rest of your palette.
Against white it measures 6.64:1 and against black 3.16:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text.
One color explored: close hues with real lightness and chroma structure, so the palette is the anchor through value rather than a set of colors.
#8bb9aa · #5f9484 · #276757 · #0b4d3e · #002920 · #000a06
The anchor's neighbours on the wheel — everything shares an undertone, so the chord carries color without anything having to be muted to get along.
#50878e · #367874 · #276757 · #24553b · #254222 · #24300c
The mid-gap pairing — sage and mustard, terracotta and olive. A foil rotated 40–65° toward warm or cool: too far to be kin, too near to argue, carried by temperature and a deliberate value offset.
#98bac8 · #5f9eb8 · #5f7c88 · #276757 · #0e4a3c · #002e24
One deliberately opposed voice — a single restrained counterpoint across the wheel, or temperature against temperature where the anchor is too muted to carry a loud opposite.
#a5c5bb · #b57d94 · #276757 · #30413b · #06271f · #000c08
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f8eff2 · #a8b4b0 · #787274 · #276757 · #384541 · #020101
This color as a ground rather than a subject — its own restraint held across a narrow value band, carrying one saturated voice from the opposite temperature.
#f9eff2 · #d1c5c9 · #a5989c · #2c1d23 · #090104 · #276757
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#d3d6b0 · #8dc285 · #f12e5a · #276757 · #543853 · #1c0b03
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffecf3 · #c4a4c7 · #9b625e · #276757 · #523655 · #050000
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#f2efff · #b2aad4 · #966849 · #276757 · #5c381f · #010006
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ebf2ff · #9db1d8 · #976177 · #276757 · #523e14 · #040001
#497E6F · #689688 · #88AEA2 · #A7C7BD · #C7E0D8
#1B5648 · #0F4639 · #03362B · #00271E · #001812
#366458 · #426258 · #4C5F59
Its moderate chroma lets it work in mid-size areas — upholstery, secondary UI surfaces, editorial blocks — without overwhelming neighbors. In palettes it pairs most predictably with its tonal ramp and analogous neighbors; reserve the complementary hue for small, deliberate contrast.